Move the info formatting into its own function.

1 files changed, 22 insertions, 1 deletions

diff --git a/tests/test_misc.py b/tests/test_misc.py
index e7fa436..58c7164 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -1,7 +1,7 @@
 """Tests of miscellaneous stuff."""
 import sys
 
-from coverage.misc import Hasher, file_be_gone
+from coverage.misc import Hasher, file_be_gone, info_formatter
 from coverage import __version__, __url__
 from tests.coveragetest import CoverageTest
 
@@ -45,6 +45,27 @@ class RemoveFileTest(CoverageTest):
         self.assertRaises(OSError, file_be_gone, ".")
 
 
+class InfoFormatterTest(CoverageTest):
+    """Tests of misc.info_formatter."""
+
+    def test_info_formatter(self):
+        lines = list(info_formatter([
+            ('x', 'hello there'),
+            ('very long label', ['one element']),
+            ('regular', ['abc', 'def', 'ghi', 'jkl']),
+            ('nothing', []),
+        ]))
+        self.assertEqual(lines, [
+            '               x: hello there',
+            ' very long label: one element',
+            '         regular: abc',
+            '                  def',
+            '                  ghi',
+            '                  jkl',
+            '         nothing: -none-',
+        ])
+
+
 class SetupPyTest(CoverageTest):
     """Tests of setup.py"""